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Keith_Richards [23]
3 years ago
7

Choose two statements that are true for this expression.

Mathematics
1 answer:
alina1380 [7]3 years ago
7 0

Answer:

Options (A) and (D).

Step-by-step explanation:

Given expression is,

4x³ - 7x² - \frac{30}{y} + 15

Characteristics of the give expression ,

Option (A).

Third term -\frac{30}{y} of the expression is in the form a ratio.

True.

Option (B).

Entire expression is a difference.

False.

Option (C).

There are three terms.

False.

Option (D).

There are four terms in the given expression.

True.

Therefore, Options (A) and (D) will be the correct options.

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35% of 80 is what number
Elden [556K]

Answer:

35/100 *80=25

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Laura walks 1/2 mile every 10 minutes. At this rate how far will she walk in an hour?
gulaghasi [49]

well, an hour has 60 minutes, that means 10+10+10+10+10+10 minutes.

we know she can do ½ mile in 10 minutes, so in an hour, she'll be doing

½+½+½+½+½+½ miles, and you know how much that is.

8 0
3 years ago
Can anyone teach me plz<br>This question about math<br>Plz open to see clearly
emmainna [20.7K]

Assuming you know the quadratic formula:

x = \frac{-b \pm \sqrt{b^2-4ac}}{2a}

You can fill in a, b and c in this and get:

x = \frac{4 \pm \sqrt{16-8p}}{4}

Now, let's create a shorthand q = \frac{\sqrt{16-8p}}{4} to make the writing easier:

x = 1 \pm q

But since one root is three times the other root (but we don't know which one), we also know that:

1 + q = 3(1-q) or 1 - q = 3(1+q)

If you solve this, you get:

q = \frac{1}{2} or q = -\frac{1}{2}

However, since q is a square root, it must be postive.

So we know that:

\frac{\sqrt{16-8p}}{4} = \frac{1}{2}

From this you find that

16-8p = 4

So p = 3/2

The roots are x=1/2 and x=3/2.





5 0
3 years ago
Please help me in this please
alex41 [277]
Angle ABC =90°+60°
=150°
6 0
4 years ago
I have no idea what to do. PLS HELP
Zarrin [17]

Answer:

\textbf{Option C}\\

Step-by-step explanation:

\textup{You have to substitute values of x from the table and see if it satisfies the given condition.}\\\textup{For example in option A, $(-2,-2)$ is the point given.}\\\textup{Substitute $x = -2 $ in $y = -x^2 + 3x $}\\\textup{We get $y = -10 \ne -2$. Eliminate option $A$ and $B$ from this.}\\

\textup{Now we will check for $x = 1$ as the values of $y$ differ in options $C$ and $D$.}\\$i.e., $ \textup{For} $x = 1, y = - {1}^2 + 3(1) $\\$\implies y = 2 \ne 4$, \textup{eliminating Option $D$.}\\\textup{Also substitute other values for $x = -1, 0, 2$ and the answer can be verified.}\\\textup{\textbf{Hence, option $C$ will fit this function.}}

8 0
3 years ago
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